We asked Carly Johnston, MS, RDN, LDN, owner and founder of New England Nutrition Advisors in Atkinson, NH, exactly what you can eat on a low-carb diet, and the list is extensive. (Spoiler: the right carbs are key.) Keep reading for her picks, and talk to your doctor or a dietitian to determine how many grams of carbs you should eat a day, based on your goals.